Dual locking device

• US 20060254329A1
• Filed: 04/11/2006
• Published: 11/16/2006
• Est. Priority Date: 04/11/2005
• Status: Active Grant

• Current Assignee: Chun Te Yu
• Original Assignee: Chun Te Yu
• Inventors: Yu, Chun Te
• Granted Patent: US 7,415,853 B2
• Time in Patent Office: Days
• US Class Current: 70/284
• CPC Class Codes: A44B 19/301 at the end of their upward travel with any suitable device, e.g. pull member combined with a press-button, a hook, a key-operated lock
• CPC Class Codes: E05B 37/02 with tumbler discs or rings arranged on a single axis, each disc being adjustable independently of the others
• CPC Class Codes: E05B 65/52 Other locks for chests, boxes, trunks, baskets, travelling bags, or the like
• CPC Class Codes: Y10T 70/415 Combination and/or key-controlled
• CPC Class Codes: Y10T 70/5053 Interengageable slide fastener type
• CPC Class Codes: Y10T 70/7141 Combination and key
• CPC Class Codes: Y10T 70/7147 Combination or key
• CPC Class Codes: Y10T 70/8027 Condition indicators

Abstract

A dual locking device is provided for securing a plugging member of a case, such as a luggage case or suitcase or the like, and comprises a housing, a switching mechanism, a restriction member and two locking devices. The switching mechanism includes a push-button and a securing member movable relative to the housing between a locked position and an unlocked position. Additionally, the restriction member is controlled by the locking devices respectively for retaining the switching mechanism, and is movable either through a first route between a retaining position and a first releasing position or through a second route between the retaining position and a second releasing position.

Claims

1. A dual locking device comprising:

a housing, having at least one opening communicating with the interior of the housing for receiving a plugging member;

a switching mechanism, having a push-button and a securing member movable relative to the housing between a locked position and an unlocked position by pushing the push-button which drives the securing member and is partly exposed the outside of the housing;

a restriction member, being capable of moving through a first route between a retaining position to a first releasing position and through a second route between the retaining position to a second releasing position;

wherein the restriction member limits the movement of the switching mechanism while in the retaining position, and permits the switching mechanism to move to the unlocked position while in the first or second releasing positions;

a first locking device, provided for controlling the movement of the restriction member via the first route; and

a second locking device, provided for controlling the movement of the restriction member via the second route.

2. The dual locking device of claim 1, wherein the first locking device is mounted on the restriction member.

3. The dual locking device of claim 2, further comprising an indicator having an identification member directly driven by the restriction member when the dual locking device is unlocked by the first locking device.

4. The dual locking device of claim 3, wherein the restriction member is formed with a rod provided for pushing the indicator in response to the movement of the restriction member so that the identification member is displayed through a window of the housing.

5. The dual locking device of claim 4, further comprising a reposition device that can drive the indicator to make the identification member off the window of the housing.

6. The dual locking device of claim 4, wherein the push-button is formed with a driving portion that can push the indicator to make the identification member off the window of the housing by pushing the push-button after the dual locking device is unlocked by the second locking device.

7. The dual locking device of claim 2, wherein the first locking device is a key lock having a rotor driven by a configured key, and the rotor is received and slidable within a cave of the restriction member for driving the restriction member to rotate.

8. The dual locking device of claim 7, wherein the restriction member has a rail formed in the cave of the restriction member for being ridden by a rider of the rotor.

9. The dual locking device of claim 1, wherein the securing member of the switching mechanism includes two retainers overlapped with each other and against a side of the push-button.

10. The dual locking device of claim 3, wherein the securing member of the switching mechanism includes two retainers overlapped with each other, and the indicator overlies the two retainers of the securing member of the switching mechanism.

11. A case comprising a case body, a case cover and a dual locking device, wherein a side of the case body is jointed with a side of the case cover, and a plugging member is mounted on the case cover for being secured in the dual locking device which is mounted on the case body, and the dual locking device comprises:

a housing, having at least one opening communicating with the interior of the housing for receiving the plugging member;

a switching mechanism, having a push-button and a securing member movable relative to the housing between a locked position and an unlocked position by pushing the push-button which drives the securing member and is partly exposed the outside of the housing;

a restriction member, being capable of moving through a first route between a retaining position to a first releasing position and through a second route between the retaining position to a second releasing position;

wherein the restriction member limits the movement of the switching mechanism while in the retaining position, and permits the switching mechanism to move to the unlocked position while in the first or second releasing positions;

a first locking device, provided for controlling the movement of the restriction member via the first route; and

a second locking device, provided for controlling the movement of the restriction member via the second route.

12. The case of claim 11, wherein the locking device further comprises an indicator which can shift from one state to another state when the dual locking device is unlocked by the first locking device.